CN210154785U

CN210154785U - Scissor-foot keyboard key detection machine

Info

Publication number: CN210154785U
Application number: CN201920905778.5U
Authority: CN
Inventors: 林溪彬
Original assignee: Yuanxiu Science And Technology Suzhou Co Ltd
Current assignee: Yuanxiu Science And Technology Suzhou Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-03-17
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a scissors foot keyboard button detects machine, a serial communication port, including frame, elevator, gas box, test rod and set up in the anchor clamps of gas box lower extreme, the elevator can be connected in the frame by upper and lower sliding, the gas box includes cavity and the upper cover that covers in the cavity upper end, be equipped with a plurality of gas rings in the cavity, the gas ring lateral wall is equipped with a plurality of gas pockets of connecting in the cavity, the gas pocket is along the equipartition of gas ring lateral wall, the test rod is connected in the gas ring, the upper end of test rod is equipped with the thickening section, the test rod is clearance fit with the gas ring, the gas box still is equipped with the interface that switches on in the cavity, the; the upper end of the thickening section is also provided with a proximity switch, and the proximity switch is connected with a testing device. The utility model discloses can overcome among the prior art test bar and influence the test result because of the existence of frictional force, the gravity that can be purely through the test bar detects the trigger power of key cap, has promoted the measuring accuracy of key cap trigger power.

Description

Scissor-foot keyboard key detection machine

Technical Field

The utility model relates to a scissors foot keyboard button detects machine belongs to keyboard and detects technical field.

Background

The keyboard is the most commonly used computer input device, and the keyboard needs to pass strict detection in the process of production and assembly, wherein the magnitude of case trigger force is one of the necessary items, and the main purpose of the detection is to avoid the phenomenon that a keycap is clamped after installation or a scissor structure below the keycap is in failure.

The common key detection machine in the prior art detects the trigger force of the key, but the key detection machine in the prior art has the following problems: firstly, the test rod for testing the pressure of the key is connected through the spring, and during testing, the gravity of the test rod plus the elastic force of the spring is actually compared with the trigger force of the key, but the manufacturing quality of the spring cannot be guaranteed, and the elastic performance of the spring is changed when the spring is used for a long time; secondly, the test rod more or less can produce the friction with the test rod fixing device, and this also can reduce the test accuracy to a certain extent.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art, the utility model aims to provide a scissors foot keyboard button detects machine.

In order to achieve the above object, the utility model adopts the following technical scheme:

the scissor-foot keyboard key detection machine is characterized by comprising a rack, a lifting block, a gas box, a test rod and a clamp arranged at the lower end of the gas box, wherein the lifting block can be connected to the rack in a vertical sliding mode, the gas box comprises a cavity and an upper cover covering the upper end of the cavity, a plurality of gas rings are arranged in the cavity, a plurality of gas holes connected to the cavity are formed in the side wall of each gas ring, the gas holes are uniformly distributed along the side wall of each gas ring, the test rod is connected to the gas rings, a thickening section is arranged at the upper end of the test rod, the test rod and the gas rings are in clearance fit, the gas box is further provided with an interface communicated with the cavity, and the interface is; the upper end of the thickening section is also provided with a proximity switch, and the proximity switch is connected with a testing device.

Preferably, the scissor-foot keyboard key detection machine is characterized in that a slide way is further arranged in the rack, and the lifting block is connected to the inside of the slide way.

Preferably, the scissor-foot keyboard key detector is characterized in that the cross section of the lifting block is circular, a positioning groove is formed in the side portion of the lifting block, and a positioning pin used for being connected with the positioning groove is further arranged on the slide way.

Preferably, the scissor-foot keyboard key detection machine is characterized in that a connecting rod is further arranged on the side portion of the lifting block, a magnet is arranged at the lower end of the connecting rod, and the magnet is connected with the air box.

Preferably, the scissor-foot keyboard key detection machine is characterized in that the proximity switch is connected to the connecting rod through a horizontal plate.

Preferably, the scissor-foot keyboard key detection machine is characterized in that a screw is further arranged at the upper end of the lifting block and connected with a nut, the nut is arranged at the upper end of the rack, and the nut is connected with the rotary driving device.

Preferably, the scissor-foot keyboard key detector is characterized in that turbine teeth are further arranged on the side portion of the nut, the rotary driving device comprises a motor and a worm connected to the power output end of the motor, and the worm is connected to the turbine teeth.

Preferably, the scissor-foot keyboard key detection machine is characterized in that an upper protrusion is further arranged at the upper end of the rack and connected with the lower surface of the nut, a gasket is further arranged between the upper protrusion and the nut, and the gasket is made of nylon or polytetrafluoroethylene.

The utility model discloses the beneficial effect who reaches:

the utility model discloses can overcome among the prior art test bar and influence the test result because of the existence of frictional force, the gravity that can be purely through the test bar detects the trigger power of key cap, has promoted the measuring accuracy of key cap trigger power.

The utility model discloses a be connected through magnet between gas box and the connecting rod, conveniently change different gas boxes and be used for satisfying the keyboard test requirement of desynchronous key cap overall arrangement.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a partial enlarged view of the gas box and the test rod of the present invention;

the meaning of the reference symbols in the figures: 1-a frame; 2-a slideway; 3-lifting block; 4-screw rod; 5, a motor; 6-connecting rod; 7-gas box; 8-a test rod; 9-a clamp; 11-upper bulge; 31-a positioning groove; 32-positioning pins; 41-a nut; 51-a worm; 61-horizontal plate; 62-a proximity switch; 71-cavity; 72-an interface; 73-gas ring; 731-stomata; 74-upper cover; 81-thickening section; 601-a magnet; 411-shim.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and 2: the embodiment discloses a scissor-foot keyboard key detection machine, which comprises a rack 1, a lifting block 3, a gas box 7, a test rod 8 and a clamp 9 arranged at the lower end of the gas box 7, wherein the lifting block 3 can be connected to the rack 1 in an up-and-down sliding manner, the gas box 7 comprises a cavity 71 and an upper cover 74 covering the upper end of the cavity 71, a plurality of gas rings 73 are arranged in the cavity 71, a plurality of air holes 731 connected to the cavity 71 are formed in the side wall of each gas ring 73, the air holes 731 are uniformly distributed along the side wall of each gas ring 73, the test rod 8 is connected to the gas rings 73, a thickened section 81 is arranged at the upper end of the test rod 8, the test rod 8 is in clearance fit with the gas rings 73, the gas box 7 is; the thickened section 81 is used for limiting, and the test rod 8 is prevented from slipping from the air ring 73. The position of the test rod 8 is consistent with the position of the keycap on the keyboard to be tested, and the weight of the test rod is equal to the trigger force of the keycap to be tested.

The upper end of the thickening section 81 is also provided with a proximity switch 62, the proximity switch 62 is connected with a testing device, and the testing device only needs to receive signals of the proximity switch 62.

Specifically, the frame 1 of this embodiment is provided with a slide 2, and the lifting block 3 is connected to the inside of the slide 2.

The cross section of the lifting block 3 is circular, and in order to avoid the rotation of the lifting block 3 in the slideway 2, the side part of the lifting block 3 of the embodiment is further provided with a positioning groove 31, and the slideway 2 is further provided with a positioning pin 32 for connecting the positioning groove 31.

Specifically, the connection mode of the lifting block 3 and the gas receiving box 7 is as follows: the lateral part of elevator 3 still is equipped with connecting rod 6, and the lower extreme of connecting rod 6 is equipped with magnet 601, and magnet 601 connects gas box 7. The connecting rod 6 is connected to the side of the lifting block 3 in order to avoid the connecting rod 6 from affecting the installation of the test rod 8, so that the gap between adjacent keycaps is small, and therefore the connecting rod 6 is preferably connected to the edge of the air box 7. The detachable connection between the air box 7 and the connecting rod 6 is realized by the magnetism of the magnet 601, and it should be noted that a positioning device is also arranged between the connecting rod 6 and the air box 7, and the positioning device is used for realizing the accurate positioning between the air box 7 and the connecting rod 6, so that the relative position of the air box 7 and the connecting rod 6 is fixed after the installation.

Specifically, the method comprises the following steps: the proximity switch 62 is connected to the connecting rod 6 through the horizontal plate 61.

The lifting connection mode of the lifting block 3 is as follows: the upper end of the lifting block 3 is also provided with a screw rod 4, the screw rod 4 is connected with a nut 41, the nut 41 is arranged at the upper end of the frame 1, and the nut 41 is connected with a rotary driving device.

The side of the nut 41 is also provided with turbine teeth, the rotation driving device comprises a motor 5 and a worm 51 connected to the power output end of the motor 5, and the worm 51 is connected to the turbine teeth. That is to say the nut 41 is in fact a worm with a thread on the inside.

Specifically, frame 1 upper end still is equipped with protruding 11, and the surface roughness of the upper surface of protruding 11 should be very low for play antifriction's effect, and the lower surface of protruding 11 coupling nut 41 still is equipped with gasket 411 on the upper surface between protruding 11 and the nut 41, and the material of gasket 411 is nylon or polytetrafluoroethylene, and nylon and polytetrafluoroethylene are in solid self-lubricating material, can reduce the frictional force between protruding 11 and the nut 41 on the upper surface.

During the test, will await measuring the keyboard centre gripping on anchor clamps 9, starter motor 5, realize the lift of screw rod 4 through turbine worm transmission, realize then that gas box 7 slides from top to bottom, open the air supply (usually refer to the air compressor machine), gas enters into the inside of cavity 71, enters into the clearance between test rod 8 and the gas ring 73 through gas hole 731, and the air current forms the gas film between the two, and this gas film can make test rod 8 suspend in the inside of gas ring 73, greatly reduced frictional force between the two. Therefore, when the test rod 8 contacts the keycap, the keycap is not triggered to move downwards when the gravity of the test rod is smaller than the trigger force; otherwise, the testing rod 8 moves down together with the key cap, and the proximity switch 62 at the upper end of the testing rod 8 can sense the rising testing rod 8 (the key cap corresponding to the rising testing rod 8 is the problem key cap), and transmit the signal to the testing device.

Furthermore, the utility model discloses a be connected through magnet 601 between gas box 7 and the connecting rod 6, conveniently change different gas box 7 (together with test rod 8) for satisfy the keyboard test requirement of asynchronous key cap overall arrangement, when more taking a breath box 7, proximity switch 62's relevant position or horizontal plate 61 also need change.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The scissor-foot keyboard key detection machine is characterized by comprising a rack (1), a lifting block (3), a gas box (7), a test rod (8) and a clamp (9) arranged at the lower end of the gas box (7), wherein the lifting block (3) can be vertically and slidably connected to the rack (1), the gas box (7) comprises a cavity (71) and an upper cover (74) covering the upper end of the cavity (71), a plurality of gas rings (73) are arranged in the cavity (71), the side wall of each gas ring (73) is provided with a plurality of air holes (731) connected to the cavity (71), the air holes (731) are uniformly distributed along the side wall of each gas ring (73), the test rod (8) is connected to the gas rings (73), the upper end of the test rod (8) is provided with a thickening section (81), the test rod (8) is in clearance fit with the gas rings (73), and the gas box (7) is further provided with an interface (72) communicated with the cavity (71), the interface (72) is connected to a gas source;

the upper end of the thickening section (81) is also provided with a proximity switch (62), and the proximity switch (62) is connected with a testing device.

2. The scissor-foot keyboard key detection machine according to claim 1, wherein a slide way (2) is further arranged in the rack (1), and the lifting block (3) is connected to the inside of the slide way (2).

3. The scissor-foot keyboard key detection machine according to claim 2, wherein the cross section of the lifting block (3) is circular, the side part of the lifting block (3) is provided with a positioning groove (31), and the slideway (2) is further provided with a positioning pin (32) for connecting the positioning groove (31).

4. The scissor keyboard key detector according to claim 1, wherein a connecting rod (6) is further disposed at a side of the lifting block (3), a magnet (601) is disposed at a lower end of the connecting rod (6), and the magnet (601) is connected to the air box (7).

5. A scissor-foot keyboard key detector as claimed in claim 4, wherein the proximity switch (62) is connected to the connecting rod (6) through a horizontal plate (61).

6. The scissor keyboard key detector according to claim 1, wherein a screw (4) is further disposed at an upper end of the lifting block (3), the screw (4) is connected with a nut (41), the nut (41) is disposed at an upper end of the frame (1), and the nut (41) is connected with a rotation driving device.

7. The scissor-foot keyboard key detector as claimed in claim 6, wherein the side of the nut (41) is further provided with turbine teeth, the rotation driving device comprises a motor (5) and a worm (51) connected to a power output end of the motor (5), and the worm (51) is connected to the turbine teeth.

8. The scissor keyboard key detector according to claim 6, wherein an upper protrusion (11) is further disposed at an upper end of the frame (1), the upper protrusion (11) is connected to a lower surface of the nut (41), a gasket (411) is further disposed between the upper protrusion (11) and the nut (41), and the gasket (411) is made of nylon or polytetrafluoroethylene.